Change order (Variation) Cost plus type - track previously imported items

When you import associated cost to date (or committed costs) to a Change Order then each time you run the import it adds all associated items even if they were previously imported to the CO causing double ups that you then need to find and delete.

This happens when a CO it agreed to be done cost plus style where the Prime contract was Fixed price but the CO runs across multiple billing cycles so you need to keep adding to the CO.

It basically forces you to split CO out per billing cycle even though it is the same work which runs the risk of employees adding time to incorrect billing cycles CO as the old CO can't be closed off. Or you have to run report per billing cycle and add CO items for that billing cycle to then invoice.

Could items imported to a CO be tracked once imported like what happens to transactions imported to Cost Plus Invoices?

That way when CO's are ongoing type then you can import ongoing costs to the CO without getting double up for what has been previously imported and invoiced